Vitamins for Hair Growth and Thickness: Which Ones Really Work?

By Saajid Alad | 

A woman squeezing supplements from a pipette onto her hair

Hair is personal and for some, it's all about confidence and feeling good when you look at your profile picture on social media or the reflection in the mirror. For others, it's about maintaining that natural shine and bounce that just makes you feel put together. Whatever side you're on, the right vitamins for hair growth and thickness can change the game.

Hair supplements aren't a magic bullet, but if your diet is missing certain nutrients, the right ones can absolutely support stronger, healthier hair. If you’re ready to upgrade your hair routine, then Diso has you covered with this daily boost and nutritional expertise. 

We’re here to cut through the noise and tell you what really works. Start simple. A daily vitamin boost could be the difference between your confidence and your reflection needs.

The Essential Nutrients your Hair Needs for Growth and Thickness

Biotin

If you’ve been researching vitamins for hair growth and thickness you will have seen biotin pop up everywhere and for good reason. Biotin is essential for keratin production, the protein that makes up your hair, skin, and nails. Biotin deficiencies can result in brittle hair or even hair loss. Diso has paired Biotin with Folic acid and Zinc to create the ultimate cocktail and hair-stimulating supplement.

Biotin Food Sources: Eggs, nuts, seeds, and sweet potatoes.

Biotin Hair Benefits: Promotes thicker, stronger strands and reduces brittleness.

Vitamin D

Vitamin D does more than support your mood, It wakes up hair follicles that are present in the skin but are not actively growing hair. Research shows a strong link between low Vitamin D levels and hair loss, including conditions like alopecia. Many people are low in Vitamin D without even knowing it, especially in colder, darker climates like the UK. With living in these climates, we often don’t get enough sunlight so it is crucial we supplement it with the correct amount of vitamins and minerals.

Vitamin D Sources: Sunshine, dairy, orange juice, fatty fish, and red meat.

Tip: A daily Vitamin D3 supplement can make a real difference.

Iron

Iron deficiency is a sneaky cause of hair thinning, particularly in women. When your body lacks iron, it prioritises essential functions over growing hair. If you’ve been looking into minerals that support hair health, iron is one you shouldn’t overlook. Iron plays a key role in helping red blood cells transport oxygen throughout your body including directly to your hair roots. Without enough iron, your body will feel fatigued and may struggle to supply your scalp with the oxygen it needs for healthy hair growth.

Iron Food Sources: Eggs, chickpeas, nuts, seeds, brown rice, baked beans, lentils, spinach, broccoli, tofu, and dried fruit.

Iron Hair Benefits: Iron supplements help support oxygen delivery to hair follicles, helping promote growth and reduce shedding.

Vitamin C

If you’re exploring nutrients that support strong, healthy hair, Vitamin C deserves a top spot on your list. It helps your body produce collagen, a protein packed with amino acids that strengthen hair follicles and support hair structure. Vitamin C isn’t just for immune support, It helps act as a powerful antioxidant, protecting your cells from free radicals that can damage hair and slow growth.

Vitamin C Food Sources: Oranges, strawberries, bell peppers, broccoli.

Tip: Combine your Vitamin C strips with an iron supplement or iron-rich meals for better absorption.

Zinc

Zinc is a vital mineral when it comes to maintaining a healthy scalp and supporting hair growth, it plays a key role in tissue repair and regeneration, including the upkeep of your hair follicles. A zinc deficiency can lead to hair loss and even scalp issues like dandruff so it is crucial to include this supplement in your daily routine. Taking a regular dose helps regulate sebum production, the natural oil that moisturises your scalp and protects your strands whether you’re producing too much or too little.

Zinc Food Sources: Shellfish, beef, spinach, lentils and pumpkin seeds.

Tip: Stick to low-dose supplements unless prescribed otherwise. Overdoing zinc can backfire.

Vitamin E

Vitamin E is a powerful antioxidant that helps protect cells including those in your scalp and hair follicles from oxidative stress. Some research has shown that people with hair loss conditions like alopecia areata often have lower levels of Vitamin E in their systems. Clinical studies have also suggested that tocotrienols, a form of Vitamin E, may support improved hair health and reduce shedding. While Vitamin E can be applied topically, its effectiveness is best supported through dietary intake. However, because it’s a fat-soluble vitamin, it’s important not to over-supplement, as excessive levels may lead to adverse effects, including hair loss.

Vitamin E Food Sources: Avocado, spinach, fish, and almonds.

Vitamin E Hair Benefits: Results in shinier, healthier-looking hair. You’ll often find Vitamin E combined with biotin in hair supplement formulas.

Omega-3 Fatty Acids

Technically not a vitamin, but still essential and we feel it needs to be highlighted. Omega 3 nourishes hair, supports scalp health, and reduces inflammation, important if you’re seeing hair fall linked to stress. By supporting overall scalp health, Omega 3s also contribute to shinier, more hydrated strands creating an ideal environment for healthy hair growth.

Omega 3 Food Sources: Fatty fish like salmon, flaxseeds, walnuts, and chia seeds.

Omega 3 Hair Benefits: Enhances shine, boosts hydration, and supports a healthy scalp.

What Vitamins Can Help Hair Loss?

Vitamins alone can’t fix hair loss, unfortunately it isn’t that easy. Genetics, hormones, stress, and scalp health all play a role in your head of hair and how it changes over the years. But giving your body the right nutritional tools gives you the best shot at stronger, thicker and healthier hair.

If you’re dealing with major hair loss, it’s smart to chat with a healthcare provider. Sometimes you need a long term approach, better nutrition, scalp treatments, medical therapies or a transplant.

Invest in your Hair Daily with Diso

Healthy hair begins from the inside out. By filling nutritional gaps, making mindful lifestyle choices, and incorporating the right hair supplements, you can nourish your scalp and support your hair’s natural growth cycle. Pair these internal efforts with a gentle, consistent hair care routine, and you’ll be setting the stage for stronger, fuller, and more vibrant hair.

Hopefully, our guide and suggestions have answered all of your questions surrounding our hair supplements. Take a look at our range of dissolvable vitamins today and let’s work towards getting you the health and wellness boost that you’re looking for. If you have any questions about our products, please feel free to get in touch with our brilliant team of experts.

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